Cardiac Resynchronisation Therapy (CRT)
Cardiac Resynchronisation Therapy (CRT) is a procedure that uses a specialised type of pacemaker to coordinate the heart’s contractions. It is used for patients with heart failure and evidence of delayed electrical conduction between the heart’s chambers.
At CardioOne, CRT is offered as part of a comprehensive approach to managing complex rhythm and heart failure conditions.
When CRT Is Recommended
CRT may be advised if you have:
- Moderate to severe heart failure
- A widened QRS complex on ECG (indicating conduction delay)
- Reduced left ventricular function
The aim is to improve coordination between the left and right ventricles, helping the heart pump more efficiently and relieving symptoms such as breathlessness and fatigue.
How the Procedure Works
CRT implantation is similar to pacemaker or defibrillator insertion. Three leads are used:
- One in the right atrium
- One in the right ventricle
- One guided through a vein to the left ventricle
These leads connect to a pacing device that coordinates both sides of the heart to contract simultaneously. The procedure is performed under local anaesthesia and sedation, taking around two to three hours.
State-of-the-art Facility
Located in Chermside Health Hub
Level 2, 621 Gympie Rd, Chermside
After the Procedure
You’ll be monitored overnight, with device checks performed before discharge. Most patients resume light activities within a week.
The CRT device is programmed to deliver optimal pacing intervals, and settings may be adjusted during follow-up visits to ensure the best heart function.
Long-Term Care
CRT devices may include defibrillator capability (CRT-D) to provide both resynchronisation and shock therapy if required. Routine follow-up ensures stable function, battery health, and symptom improvement.